More than four years have passed since the discovery of one of the most sophisticated and dangerous malicious program – the Stuxnet worm, considered to be the first cyber-weapon – but many mysteries still swirl around the story.

Kaspersky Lab’s Global Research and Analysis Team experts researched the “Darkhotel” espionage campaign, which has lurked in the shadows for at least four years while stealing sensitive data from selected corporate executives travelling abroad.

According to the results of the “Mobile CyberThreats” survey carried out by Kaspersky Lab and INTERPOL between August 2013 and July 2014, malicious programs targeting Android-based devices in order to steal their owners’ money were used in 60% of attacks registered by Kaspersky Lab security products.

Security experts from Kaspersky Lab’s Global Research and Analysis Team shared the security measures they use to protect their own communications via email, instant messaging tools, smartphones, and while browsing over computer networks and interacting with the physical world.